<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width,initial-scale=1.0,user-scalable=no">
    <title>vuestore</title>
    <style>
      body{width: 20rem;margin: 0 auto!important;}
    </style>
  </head>
  <body>
    <div id="app"></div>
    <!-- built files will be auto injected -->
    <script>
      let htmlWidth = document.documentElement.clientWidth || document.body.clientWidth; 
      let htmlDom = document.getElementsByTagName('html')[0];
      if (htmlWidth > 750) { htmlWidth = 750 }
      htmlDom.style.fontSize= htmlWidth/20 + 'px';
    </script>
  </body>
</html>
